Βαλάκ, ὁ, indeclinable (בָּלַק empty (so Gesenius in his Thesaurus, but in his later works he adopts (with Fürst, et al.) an active sense 'one who makes empty,' 'a devastator,' 'spoiler'; see B. D. American edition, under the word)), Balak, king of the Moabites (Numbers 22:2f and elsewhere): Revelation 2:14.
Englishman's Concordance (References)
Strong's Greek: 904. Βαλάκ (Balak) — 1 Occurrence
Revelation 2:14 - N GRK:ἐδίδασκεν τῷ Βαλὰκ βαλεῖν σκάνδαλον NAS: kept teaching Balak to put KJV: taught Balac to cast INT: taught Balak to cast a snare